I agree with all the proposed changes, as long as you keep version 3.0 available. That way you have a purist version for people who prefer only minor changes, and a radical version for people who prefer radical changes.
Are there any specific changes you personally would want omitted from a single ‘desert island’ version?
If I could only have one version, here’s what I’d omit from the version 4.0 change-list:
-Remove Palpatine telling Rey to find him. It creates the expectation that Rey will search for Palpatine in TLJ, which she doesn’t.
-Remove Palpatine telling Rey to kill Kylo, since Rey doesn’t actually make any moves to kill him.
-Keep the no-look shot out of the movie. It’s really dumb, and I don’t think the callback in TROS is worth putting it back in.
-Remove Kylo looking at the sun-drainer. It removes the tension if Kylo doesn’t go to get Rey as soon as Snoke says “Bring her to me.”
Everything else I like.